First, thanks if you can help me!
I have a 2005 crew 5.3l z71 i changed out the 3.42's for some 4.10's bought the hypertech max energy and changed my speedcalibration and rearendwent about 3blocks and my ebrake and ABS light came on, hypertech says yep thats what happens and we cant help you[&o]the tranny has more of a slap when it shifts and just dont feel the same i cant be the first person to change out gears himself, so can the dealership tell theentire truck it now has 4.10's thanks again for any help on this.

 

man 4.10's is gonna be hell on gas mileage at highway speeds.You do alot of towing or were you just looking for low end punch?

 

do lots of crawling around in deep sand and shelf rock,hunting

 

If the dealership is looking for it they can tell...

It seems to be a repeating thing here for people who use that stupid hypertech programmer..

Gotta love their tech support too huh, tufftitty?

 

yea hypertech aint worth a flip[]so iguess its to the dealership for a 2hr minimum, almost what i paid for the programmer[][]

 

Oh I see. So I guess the moral of the story here is Dont get a Hypertech programmer. Thats good to know.

 

^^yea it was not much good to me gonna see if summit will take back?

so no one has had to deal with this....